Responses
The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.
The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.
The substance with the higher pH has 1,000 times as many hydrogen ions per volume of water.
The substance with the higher pH has 1,000 times as many hydrogen ions per volume of water.
The substance with the lower pH has twice as many hydrogen ions per volume of water.
The substance with the lower pH has twice as many hydrogen ions per volume of water.
The substance with the higher pH has twice as many hydrogen ions per volume of water.
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The correct statement is:
The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.
This is because the pH scale is logarithmic, meaning that each whole number change on the pH scale represents a tenfold change in hydrogen ion concentration. Therefore, a difference of 3 pH units (from 3 to 6) corresponds to 10^3, or 1,000 times more hydrogen ions in the substance with a pH of 3.0 compared to the substance with a pH of 6.0.
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